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- 4.QTZ400 tower crane has helmet structures with two hoisting points, adopts small trolleys, hoists with upper slewing liquid pressure, and it can be installed quickly and convenienty. 4．QTZ400塔机为双吊点塔帽式结构，采用小车变幅，上回转，液压顶升形式，安装快捷方便。
- High level slewing tower crane 回转支承设置在塔身上部的塔式起重机
- Low level slewing tower crane 下回转塔式起重机
- slewing tower crane 塔式回转起重机
- Tower crane with slewing upper platform 上回转平台式塔式起重机
- The truck crane (gantry crane, tower crane, mobile slewing crane, bridge crane, crawler crane) can lift a weight of 15 tons. 这台汽车起重机（龙门吊、塔式吊、悬臂汽车吊、桥式吊、履带式起重机）能吊起15吨的重物。
- The truck crane( gantry crane, tower crane, mobile slewing crane, bridge crane, crawler crane) can lift a weight of15 tons. 这台汽车起重机（门吊、式吊、臂汽车吊、式吊、带式起重机）吊起15吨的重物。
- Used for port loading and unloading and tower crane for building. 适用于港口装卸和建筑用塔式起重机。
- We would like to establish long term dealership with companies manufacturing Tower Crane Components, Machines (winches, trollys, slewing motors, slewing table), Driver Cabin &Controls. Steel Stru... 查看“机械及工业制品-行业专用机械设备”:公司信息商品信息供应信息
- Main Applications: Equipment for port load and unload derrlck tower crane. 主要用途:港口装卸和塔式起重机用。
- A suggestion about slewing ring for tower crane 对塔式起重机用回转支承的一点建议
- Tower crane with slewing cap head 塔帽回转式塔式起重机
- Tower crane with slewing cat head 塔顶回转式塔式起重机
- A tower crane keeled over and crushed some temporary buildings, but fortunately nobody was hurt. 塔吊突然倒塌，砸坏了一些临时性建筑物，但幸好没有人员伤着。
- New slewing brake for tower crane 塔式起重机新型回转制动器
- The factory orders are widely used in construction machinery (excavators, tower cranes, cars hanging) old and new models wheel bearings (slewing bearings) design. 本厂承揽广泛用于建筑机械（挖掘机、塔吊、汽车吊）各种新旧型号转盘轴承（回转支承）设计制作。
- A tower crane keeled over and crushed some temporary buildings,but fortunately nobody was hurt. 塔吊突然倒塌，砸坏了一些临时性建筑物，但幸好没有人员伤着。
- High lopsided moment, in course of tower crane design, makeinconvenient, and also increase the manufacrute cost. 较大的不平衡力矩的存在，给塔式起重机的设计带来不便，也增加了制造成本。
- Vertical transportation: reinforcing steel bar, from and so on materials should use self-lifting tower crane and one 50T crawler crane. 垂直运输：钢筋、模板等材料使用自升式塔式起重机，并配备一台50t履带式起重机。
- Tower Crane Load Indicater, Building Hoist Overload Limiter, Overload Limiter For a Construction Lift. 超载装置,超负荷指示器,超负荷限制器
